mariadb/include/my_time.h
unknown 7845f99abf Data truncation reporting implementation (libmysql) + post review
fixes. Still to do: 
-  deploy my_strtoll10 in limbysql.c
- add mysql_options option to switch MYSQL_DATA_TRUNCATED on and off.


include/my_time.h:
  More calls are shared between client and server (libmysql now performs
  more intelligent date->number and number->date conversions).
  TODO: rename those which are not starting with 'my_'
include/mysql.h:
  MYSQL_BIND:
  - more elaborated comment
  - some of the ex-private members were given public names - 
    it's sometimes convenient to set bind->error to &bind->error_value.
    However Monty questions the idea, so it should be given
    more thought in future.
  - added new members to support data truncation.
  Added new return value of mysql_stmt_fetch, MYSQL_DATA_TRUNCATED.
libmysql/libmysql.c:
  - added support for data truncation during fetch
  - implementation for is_binary_compatible: now conversion functions
    are used less frequently
  - we now use number_to_datetime and TIME_to_ulonglong for date->number and
    number->date conversions
sql-common/my_time.c:
  - added implementation of date->number and number->date calls shared 
    between client and server (moved from time.cc).
sql/field.cc:
  - implemented Field_time::store_time() to better support date->time
    conversions in prepared mode. After-review fixes.
sql/field.h:
  - Field::store_time now returns int
sql/mysql_priv.h:
  - removed date->number and number->date conversion functions headers
    (moved to my_time.h)
sql/time.cc:
  - removed implementation of date->number and number->date conversion
    functions (moved to my_time.c)
tests/client_test.c:
  - added a test case for data truncation; other test cases adjusted.
  - fixed my_process_stmt_result to set STMT_ATTR_UPDATE_MAX_LENGTH (tables
    are now printed out prettier).
2004-12-16 03:15:06 +03:00

93 lines
3.1 KiB
C

/* Copyright (C) 2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
This is a private header of sql-common library, containing
declarations for my_time.c
*/
#ifndef _my_time_h_
#define _my_time_h_
#include "my_global.h"
#include "mysql_time.h"
C_MODE_START
extern ulonglong log_10_int[20];
extern uchar days_in_month[];
/*
Portable time_t replacement.
Should be signed and hold seconds for 1902-2038 range.
*/
typedef long my_time_t;
#define MY_TIME_T_MAX LONG_MAX
#define MY_TIME_T_MIN LONG_MIN
#define YY_PART_YEAR 70
/* Flags to str_to_datetime */
#define TIME_FUZZY_DATE 1
#define TIME_DATETIME_ONLY 2
/* Must be same as MODE_NO_ZERO_IN_DATE */
#define TIME_NO_ZERO_IN_DATE (65536L*2*2*2*2*2*2*2)
/* Must be same as MODE_NO_ZERO_DATE */
#define TIME_NO_ZERO_DATE (TIME_NO_ZERO_IN_DATE*2)
#define TIME_INVALID_DATES (TIME_NO_ZERO_DATE*2)
enum enum_mysql_timestamp_type
str_to_datetime(const char *str, uint length, MYSQL_TIME *l_time,
uint flags, int *was_cut);
longlong number_to_datetime(longlong nr, MYSQL_TIME *time_res,
my_bool fuzzy_date, int *was_cut);
ulonglong TIME_to_ulonglong_datetime(const MYSQL_TIME *time);
ulonglong TIME_to_ulonglong_date(const MYSQL_TIME *time);
ulonglong TIME_to_ulonglong_time(const MYSQL_TIME *time);
ulonglong TIME_to_ulonglong(const MYSQL_TIME *time);
bool str_to_time(const char *str,uint length, MYSQL_TIME *l_time,
int *was_cut);
long calc_daynr(uint year,uint month,uint day);
uint calc_days_in_year(uint year);
void init_time(void);
my_time_t
my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap);
void set_zero_time(MYSQL_TIME *tm, enum enum_mysql_timestamp_type time_type);
/*
Required buffer length for my_time_to_str, my_date_to_str,
my_datetime_to_str and TIME_to_string functions. Note, that the
caller is still responsible to check that given TIME structure
has values in valid ranges, otherwise size of the buffer could
be not enough. We also rely on the fact that even wrong values
sent using binary protocol fit in this buffer.
*/
#define MAX_DATE_STRING_REP_LENGTH 30
int my_time_to_str(const MYSQL_TIME *l_time, char *to);
int my_date_to_str(const MYSQL_TIME *l_time, char *to);
int my_datetime_to_str(const MYSQL_TIME *l_time, char *to);
int my_TIME_to_str(const MYSQL_TIME *l_time, char *to);
C_MODE_END
#endif /* _my_time_h_ */